http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Longitudinal barriers for buses and trucks
State Department of Highways and Public Transportation.
by T.J. Hirsch ; sponsored by Texas State Department of Highways and Public Transportation in cooperation with the U.S. Department of Transportation, Federal Highway Administration.
"Modified type T5 bridge rail to redirect buses and trucks, research study number 2-5-83-416."